Dear everyone and Jürgen,
Lately I got an idea in my head for a recumbent bike but I stumbled over some
problems regarding the steering system. Then I came across the website about
the Python Lowracer which convinced me that a bicycle with a steering pivot far
behind the center of the wheel was actually possible, so I began modelling my
idea. Now the first version is finished and I consider building it, but first I
need to know if this design would be stable/ridable. Is it worth building it?
The design is different in all other python’s in that it has pedals directly on
the front wheel, using a hub gear to get gear ratio’s. I also added a steer for
stability aiding purposes and as a place to put your hands on. This version is
intended as a racer, as you can see in the first image
The dimensions can be seen in the second image.
The front wheel 28 inch, the rear wheel 20 inch. Crank length is 150mm, seat
angle is 20 degrees.
Now, the main question is, would this work?
My main concern is that the legs could strike the steering column when you have
to steer hard, but there are solutions to this. Also according to the Open Bike
wiki, the Pedal-Steer interference would be bad because the steering pivot is
not under the hip of the driver. This could be solved by moving the pivot to
the seat - and this would also solve the steering column striking problem – but
this would give a trail more than twice as big as it already is now. This would
make it completely unridable, right?
I would like to hear your opinion on this :D.
Vincent Bashandy, Netherlands
Verzonden vanuit Mail<https://go.microsoft.com/fwlink/?LinkId=550986> voor
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